20498200

素因数分解:

$2^3\times 5^2\times {\mathrm{113}}^1\times {\mathrm{907}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 48133080

約数和(自身を除く): 27634880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 113, 200, 226, 452, 565, 904, 907, 1130, 1814, 2260, 2825, 3628, 4520, 4535, 5650, 7256, 9070, 11300, 18140, 22600, 22675, 36280, 45350, 90700, 102491, 181400, 204982, 409964, 512455, 819928, 1024910, 2049820, 2562275, 4099640, 5124550, 10249100, 20498200]

約数ペア:

[(1, 20498200), (2, 10249100), (4, 5124550), (5, 4099640), (8, 2562275), (10, 2049820), (20, 1024910), (25, 819928), (40, 512455), (50, 409964), (100, 204982), (113, 181400), (200, 102491), (226, 90700), (452, 45350), (565, 36280), (904, 22675), (907, 22600), (1130, 18140), (1814, 11300), (2260, 9070), (2825, 7256), (3628, 5650), (4520, 4535)]